Computer programs for searching, discovering and/or extracting text, data, images and sounds; software for accessing data bases, searching, discovering and/or extracting text, data, images and sounds from a data base; computer software for concept matching, agent creations, agent retraining and for conducting text searches; computer programs capable of adapting their behaviour according to a user's instructions or responses; computer programs for creating concept maps of text and data; computer programs capable of adapting their behaviour to changing data; computer programs capable of distinguishing knowledge from text and data